Demonstration device or the like



FIG. 1 is a perspective view of my demonstration device or the like showing my new design;

FIG. 2 is a top plan view of such design;

FIG. 3 is a side elevational view of the same;

FIG. 4 is a side elevational view of the same taken opposite FIG. 3;

FIG. 5 is a side elevational view taken from the left of FIG. 3; and

FIG. 6 is a side elevational view taken from the side opposite FIG. 5. 

The ornamental design for a demonstration device or the like, as shown. 